Struct RwSignalField

pub struct RwSignalField<M, T>
where
    T: Clone + Default + 'static,
    M: FieldMeta<Type = T>,
{ /* private fields */ }

Implementations

impl<M, T> RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

pub fn new(value: T) -> Self

Trait Implementations

impl<M, T> Clone for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<M, T> Default for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

fn default() -> Self

Returns the “default value” for a type.

impl<M, T> Field for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

fn label(&self) -> &'static str

字段名称

fn required(&self) -> bool

字段是否必须

fn validate(&self) -> Option<Cow<'static, str>>

字段校验

fn set_default(&self)

设置默认值

impl<M, T> SignalGet for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn get(&self) -> Self::Value

Clones and returns the current value of the signal, and subscribes the running effect to this signal.

fn try_get(&self) -> Option<Self::Value>

Clones and returns the signal value, returning Some if the signal is still alive, and None otherwise.

impl<M, T> SignalGetUntracked for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn get_untracked(&self) -> Self::Value

Gets the signal’s value without creating a dependency on the current scope.

fn try_get_untracked(&self) -> Option<Self::Value>

Gets the signal’s value without creating a dependency on the current scope. Returns [Some(T)] if the signal is still valid, None otherwise.

impl<M, T> SignalSet for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn set(&self, new_value: Self::Value)

Sets the signal’s value and notifies subscribers.

fn try_set(&self, new_value: Self::Value) -> Option<Self::Value>

Sets the signal’s value and notifies subscribers. Returns None if the signal is still valid, [Some(T)] otherwise.

impl<M, T> SignalSetUntracked<T> for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

fn set_untracked(&self, new_value: T)

Sets the signal’s value without notifying dependents.

fn try_set_untracked(&self, new_value: T) -> Option<T>

Attempts to set the signal if it’s still valid. Returns None if the signal was set, [Some(T)] otherwise.

impl<M, T> SignalUpdate for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn update(&self, f: impl FnOnce(&mut Self::Value))

Applies a function to the current value to mutate it in place and notifies subscribers that the signal has changed.

fn try_update<O>(&self, f: impl FnOnce(&mut Self::Value) -> O) -> Option<O>

Applies a function to the current value to mutate it in place and notifies subscribers that the signal has changed. Returns [Some(O)] if the signal is still valid, None otherwise.

impl<M, T> SignalUpdateUntracked<T> for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

fn update_untracked(&self, f: impl FnOnce(&mut T))

Runs the provided closure with a mutable reference to the current value without notifying dependents.

fn try_update_untracked<O>(&self, f: impl FnOnce(&mut T) -> O) -> Option<O>

Runs the provided closure with a mutable reference to the current value without notifying dependents and returns the value the closure returned.

impl<M, T> SignalWith for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn with<O>(&self, f: impl FnOnce(&Self::Value) -> O) -> O

Applies a function to the current value of the signal, and subscribes the running effect to this signal.

fn try_with<O>(&self, f: impl FnOnce(&Self::Value) -> O) -> Option<O>

Applies a function to the current value of the signal, and subscribes the running effect to this signal. Returns Some if the signal is valid and the function ran, otherwise returns None.

fn track(&self)

Subscribes to this signal in the current reactive scope without doing anything with its value.

impl<M, T> SignalWithUntracked for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn with_untracked<O>(&self, f: impl FnOnce(&Self::Value) -> O) -> O

Runs the provided closure with a reference to the current value without creating a dependency on the current scope.

fn try_with_untracked<O>(&self, f: impl FnOnce(&Self::Value) -> O) -> Option<O>

Runs the provided closure with a reference to the current value without creating a dependency on the current scope. Returns [Some(O)] if the signal is still valid, None otherwise.

impl<M, T> Copy for RwSignalField<M, T>

where T: Clone + Default + 'static, M: FieldMeta<Type = T>,